using System;

public class Program

{

    public static void Main()

    {

        string url = @"https://public.dm.files.1drv.com:8080/y4mvlhj5Obp-Nr88E05wR6qxonKNDn9N3vt-gkKd-o31CvZFKzAgiwFNB1jJ_r78rlLa0FB3jfS6OY17WwMYdctpecIKOp5752q_i-gmVH0nNTopMBjLsVupRWRntK8PDZdH1EOlaaaad4UHkqkwhd8Hx6jQYhdSmde0kcw7xw3AznyPwI8naaaaaJRKbnPLAdQZ9BaaaaiwWv4F8iHMMIZeBXvW1rT0FKkCWl5dyJqBV0";

        Uri uri = new Uri(url);

        if(Uri.CheckSchemeName(url)){

          Console.WriteLine("Hello World");

        }else{

            Console.WriteLine(uri.Host);    

        }

    }

}